"""
evolution - Invisible GRPO evolution pipeline.

Automatically logs agent trajectories, computes rewards, and runs
MLX-native GRPO training in the background when the machine is idle
and on AC power. The user never sees training; they just get a better
agent over time.

Dependency (for actual GRPO training): mlxsmith or mlx-guided-grpo,
installed in the MLX venv. If absent, the scheduler skips training.
"""
